Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection

08

responsive to excess current

H

ELECTRICITY

02

GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER

H

EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS

7

Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions

04

for transformers

H

ELECTRICITY

02

GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER

H

EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS

9

Emergency protective circuit arrangements for limiting excess current or voltage without disconnection